ENGINEERING COMPANY INC.
CAUTION
Loud siren noise can cause
hearing damage and/or loss.
Refer to OSHA Section 1910.95 prior
to putting ANY siren into service!
Wear
Protection!
ACTIVATION OF THIS
SIREN MAY DAMAGE
UNPROTECTED EARS!
51 Winthrop Road
Chester, Connecticut 06412-0684
Phone: (860) 526-9504
Fax: (860) 526-4078
Model SAK46 for Projector™ Series SA315
Model HWLCI12 for Howler™ Siren Speaker
Mounting to the 2012 Chevy Impala
Installation Guide:
Internet: www.whelen.com
Sales e-mail: autosale@whelen.com
Canadian Sales e-mail: canadiansales@whelen.com
Customer Service e-mail: custserv@whelen.com
DANGER! Sirens produce extremely loud emergency warning tones! Exposure to these tones without
proper and adequate hearing protection, could cause ear damage and/or hearing loss! The Occupational Safety &
Health Administration (www.osha.gov) provides information necessary to determine safe exposure times in
Occupational Noise Exposure Section 1910.95. Until you have determined the safe exposure times for your
specific application, operators and anyone else in the immediate vicinity should be required to wear an approved
hearing protection device. FAILURE TO FOLLOW THIS RECOMMENDATION COULD CAUSE HEARING LOSS!
Safety First
This document provides all the necessary information to allow your Whelen product to be properly and safely installed.
Before beginning the installation and/or operation of your new product, the installation technician and operator must
read this manual completely. Important information is contained herein that could prevent serious injury or damage.
• Proper installation of this product requires the installer to have a good understanding of automotive electronics,
systems and procedures.
• Failure to use specified installation parts and/or hardware will void the product warranty!
• If mounting this product requires drilling holes, the installer MUST be sure that no vehicle components or other
vital parts could be damaged by the drilling process. Check both sides of the mounting surface before drilling
begins. Also de-burr any holes and remove any metal shards or remnants. Install grommets into all wire
passage holes.
• If this manual states that this product may be mounted with suction cups, magnets, tape or Velcro®, clean the
mounting surface with a 50/50 mix of isopropyl alcohol and water and dry thoroughly.
• Do not install this product or route any wires in the deployment area of your air bag. Equipment mounted or
located in the air bag deployment area will damage or reduce the effectiveness of the air bag, or become a
projectile that could cause serious personal injury or death. Refer to your vehicle owner’s manual for the air bag
deployment area. The User/Installer assumes full responsibility to determine proper mounting location, based
on providing ultimate safety to all passengers inside the vehicle.
• For this product to operate at optimum efficiency, a good electrical connection to chassis ground must be
made. The recommended procedure requires the product ground wire to be connected directly to the NEGATIVE
(-) battery post.
• If this product uses a remote device to activate or control this product, make sure this control is located in an
area that allows both the vehicle and the control to be operated safely in any driving condition. DO NOT
ATTEMPT TO ACTIVATE OR CONTROL THIS DEVICE IN A HAZARDOUS DRIVING SITUATION.
• It is recommended that these instructions be stored in a safe place and
referred to when performing maintenance and/or reinstallation of this
product.
• FAILURE TO FOLLOW THESE SAFETY PRECAUTIONS AND
INSTRUCTIONS COULD RESULT IN DAMAGE TO THE PRODUCT OR
VEHICLE AND/OR SERIOUS INJURY TO YOU AND YOUR PASSENGERS!
Automotive: Sirens/Switches
For warranty information regarding this product, visit www.whelen.com/warranty
©2012 Whelen Engineering Company Inc.
Form No.14569 (022912)
Page 1
1/4" SPLIT LOCKWASHER
(QTY 1)
1/4 - 20 X 1-1/4"
HEX HD SS (QTY 1)
TO HOWLER
BRACKET
1/4 - 20 X 1-1/4"
PFHMS (QTY 3)
TO SA315
BRACKET
5/16 X 1" HEX HD
SHEET METAL
SCREW (QTY 4)
3/8" FLAT
WASHER (QTY 2)
3/8 - 16 ELASTIC
STOP NUT (QTY 2)
5/16 ELASTIC
STOP NUT
(QTY 2)
5/16 - 18 X 1 HEX HD BOLT (QTY 2)
HEADLIGHT SUPPORT
5/16 FLAT WASHER (QTY 2)
DRAIN
HOLES
Model SAK46 / Mounting the SA315 siren speaker to the bracket:
A
A
wire
exit &
drain
hole
SA315 Rear View
Remove 4 screws and remove brackets.
NOTE: If strap retainer brackets are
present on your Howler speaker, they
must be removed for this installation.
Howler Front View
Mount the SA315 siren speaker to its bracket (Fig. 1). The SA315 mounting kit comes with 3 long screws (1/4-20 X 1-1/4”
PHILLIPS FLAT HEAD METAL SCREWS) Longer screws are necessary to go through the mounting bracket, the siren
housing and into the siren driver. They will replace 1 of the 2 short screws (“A”) that now secure the driver to the speaker
housing when your speaker is shipped. A short screw must be used in the hole
that does not go through the bracket to properly secure the driver to the
housing. If you remove all 4
screws at once be sure to hold
the driver in place.
IMPORTANT: The SA315
speaker must be oriented so
the wire passage hole is in the
“6 o’clock” position (closest to
the road). This is also the drain
hole. Improper mounting will
result in premature driver
failure and void the warranty.
Mounting the SA315 bracket to the vehicle:
1. Unplug and remove the driver side headlight assembly from the vehicle
following manufacturers instructions.
2. Remove the 2 bolts which help secure the bumper (Fig. 2) and secure the
bracket to the vehicle where the bumper mounts using these 2 bolts.
3. Extend the WHITE (Positive) and Black (Negative) wires to your siren
amplifier and connect as instructed in the amplifier manual. Reinstall the
headlight assembly.
Fig. 1
Howler siren has been designed with a built-in timing circuit. The Occupational Safety &
Health Administration (OSHA) (www.osha.gov) provides information necessary to
determine safe exposure times in Noise and Hearing Conservation, Section 1910.95
(Occupational Noise Exposure). Until you have determined the safe exposure times for your
specific application, this siren should be configured for the minimum operating time and
operators should be required to use an approved hearing protection device. FAILURE
TO FOLLOW THIS RECOMMENDATION COULD CAUSE HEARING LOSS!
1. Mount the Howler to the bracket using the supplied 5/16 X 1” HEX HD
SHEET METAL SCREWS. The Howler must be mounted with the
drainage holes on the bottom.
2. Mount the Howler bracket to the back of the SA315 bracket with the
supplied 5/16 HEX HEAD BOLTS, 5/16 FLAT WASHERS AND 5/16
ELASTIC STOP NUTS (Figs. 2 & 3).
3. Secure the Howler bracket to the vehicle headlight support using
the supplied 5/16 - 18 X 1” HEX HEAD BOLTS, 5/16 FLAT
WASHERS AND 5/16 ELASTIC STOP NUTS (Figs. 2 & 3).
4. Extend the WHITE (Positive) and Black (Negative) wires to your siren
amplifier and connect as instructed in the siren manual.
Model HWLCI12 (requires SAK46)
Mounting the Howler speaker
and bracket:
IMPORTANT! READ THESE WARNINGS
BEFORE CONTINUING!
The Howler™ Supplemental Siren was
designed for use in high-risk areas such as an
intersection. It is not intended to be, nor should
be operated as a replacement or alternative to
the vehicle's primary siren. The low-frequency
tones of the Howler demonstrate significantly
different audio characteristics as compared to
those of a traditional higher-frequency siren.
While the low-frequency tones are better able to penetrate other vehicles, thus
alerting drivers to the presence of the responding emergency vehicle, these tones
may also penetrate into the
responding vehicle itself.
This could potentially
expose the operator to
increased noise levels.
To help eliminate
overexposure, the
Page 2
Fig. 3